Synonyms|310Antonyms|60|Broader|1Narrower|2Related|257

64 entries under fast topic. ×

1
mercurial(rapid, swift)
1
move it(expression, rapid, swift)
1
move on(expression, rapid, swift)
1
nimble(summary, rapid, swift, instant)
1
on-the-spot(adjective, prompt, quick, immediate)
1
on the double(expression, idiom, summary, swift)
1
perfunctory(rapid, swift, instant)
1
posthaste(rapid, swift)
1
pronto(summary, rapid, swift, instant)
1
snappy(summary, rapid, swift, instant)
1
spirited(rapid, swift)
1
sprightly(rapid, swift)
1
spry(rapid, swift)
1
winged(summary, rapid, swift, instant)
0
agile(rapid, swift)
0
burning(prompt, quick, immediate, urgent)
0
dire(prompt, quick, immediate, urgent)
0
imperative(prompt, quick, immediate, urgent)
0
importunate(prompt, quick, immediate, urgent)
0
keen(rapid, swift)
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ChicagoSmart Define. 2016. "instantaneous thesaurus" https://smartdefine.org/instantaneous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, instantaneous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/instantaneous/thesaurus/synonyms>.
MLASmart Define. "instantaneous thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/instantaneous/thesaurus/synonyms>